201978440

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{33889}}^1$

素因数の和:34049

約数の個数: 32

約数和(自身を含む): 457515000

約数和(自身を除く): 255536560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 33889, 67778, 135556, 169445, 271112, 338890, 677780, 1355560, 5049461, 10098922, 20197844, 25247305, 40395688, 50494610, 100989220, 201978440]

約数ペア:

[(1, 201978440), (2, 100989220), (4, 50494610), (5, 40395688), (8, 25247305), (10, 20197844), (20, 10098922), (40, 5049461), (149, 1355560), (298, 677780), (596, 338890), (745, 271112), (1192, 169445), (1490, 135556), (2980, 67778), (5960, 33889)]